1135948871 has 2 divisors, whose sum is σ = 1135948872. Its totient is φ = 1135948870.

The previous prime is 1135948867. The next prime is 1135948927. The reversal of 1135948871 is 1788495311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1135948871 - 2² = 1135948867 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1135948271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567974435 + 567974436.

It is an arithmetic number, because the mean of its divisors is an integer number (567974436).

Almost surely, 2^1135948871 is an apocalyptic number.

1135948871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1135948871 is an equidigital number, since it uses as much as digits as its factorization.

1135948871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 47.

The square root of 1135948871 is about 33703.8405971782. The cubic root of 1135948871 is about 1043.4050349545.

The spelling of 1135948871 in words is "one billion, one hundred thirty-five million, nine hundred forty-eight thousand, eight hundred seventy-one".